Reaction HUSH Instruction Manual May be covered by one or more of the following: U.S. Patents #4538297, 4647876, 4696044, 4745309, 4881047, 4893099, 5124657, 5263091, 5268527, 5319713, 5333201, 5402498 and 5493617. Other patents pending. Foreign patents pending.
Compliance Your Reaction HUSH™ pedal has been tested and complies with the following Standards and Directives as set forth by the European Union: Council Directive(s): Compatibility 89/336/EEC Standard(s): EN55013, EN50082-1 Electromagnetic This means that this product has been designed to meet stringent guidelines on how much RF energy it can emit, and that it should be immune from other sources of interference when properly used.
Precautions Refer all service to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply or plug is damaged, liquid has been spilled or objects have fallen into the apparatus or if the apparatus has been exposed to rain or moisture, does not operate normally or has been dropped. DO NOT ATTEMPT TO SERVICE THIS EQUIPMENT. QUALIFIED PERSONNEL SHOULD SERVICE THIS EQUIPMENT ONLY.
Introduction Got hiss? Get HUSH! It’s Rocktron’s acclaimed noise reduction for guitarists, now in a compact package that takes up less space on your pedal board. You asked, and now you receive. The Reaction HUSH, when used properly, will wipe out hiss, unwanted feedback and pickup buzz. The Reaction HUSH pedal delivers 65dB of signal cleanup, while your music signal integrity remains unaffected.
Introduction continued.... Here’s more HUSH tips: For maximum noise reduction results, place the Reaction HUSH after your distortion and modulation effects (chorus, flanger, phaser, etc.) but before any delay or reverb effects.
Descriptions
Descriptions continued......... 1 THRESHOLD Control - This control determines level of attack to cause the HUSH to activate. 2 9VDC Input - This input jack provides 9VDC power to the pedal from the Rocktron DC OnTap 9V power supply (sold seperately). 3 ON/OFF Leds - These LEDs shows if the pedal is on or off. When the LED is lit the pedal is on. When the LED is not lit the pedal is off. 4 BATTERY COMPARTMENT and COVER - The 9V battery can be found in this compartment.
Descriptions continued......... 7 FOOTSWITCH - Use this switch to turn on or off the pedal. The On/Off Led will show you if the pedal is on or off. 8 OUTPUT Jack - Using a standard 1/4” guitar cable you can plug in another pedal from this jack or plug directly into your amplifier.
Typical Connection
HUSH Information In most applications, the signal from an instrument being played is much louder than the noise level. Therefore, much of the noise is not heard when an instrument is being played. However, when you stop playing or let a note decay, the instrument level drops below the noise level and the noise becomes much more audible. Setting the THRESHOLD controls just above the level of the noise causes The Pedal to begin to decrease the output level so that the noise is never heard.
HUSH Information When downward expansion begins, the VCA acts like an electronic volume control and gradually begins decreasing the output signal relative to the input signal. For example, if the input signal were to drop below the threshold point by 10dB, the output would drop approximately 12dB. As the input signal drops further below the threshold point, downward expansion increases exponentially.
The Variable Integrated Release (V.I.R.) technology contained in each HUSH circuit automatically adjusts the release rate of the expander based on the dynamic decay rate of the incoming signal. If the input signal stops suddenly, downward expansion will occur rapidly (similar to a gate). If the input signal decays slowly, expansion will occur slowly without disrupting the dynamic decay of the input signal. The THRESHOLD control should be adjusted by listening to the noise floor while not playing.
Specifications: Maximum Input Maximum Output Imput Impedance Output Impedance Current Consumption 7dBu -1dBu 220kΩ 1kΩ 15mA Power Requirements 9V Alkaline Battery or Rocktron DC OnTap Univeral Power Supply (sold seperately). Negative Tip Dimensions 125mm x 78mm 61mm 5” x 3.25” x 2.5” Weight 0.7kg 1.
How to change the battery: To change the battery, remove the thumb screws on the top of the pedal and remove the battery compartment cover. Remove the old battery and replace it with a new 9V Alkaline battery. Replace battery in the same area as the old battery was located. Place the battery compartment cover on the pedal and re-insert the thumb screws. Save yourself tons of money in batteries by using the Rocktron DC OnTap Universal Power Supply to power this pedal (sold seperately).
Rocktron - A Division of GHS Corporation 2813 Wilber Ave Battle Creek MI 49037 USA www.rocktron.com info@rocktron.com tel: 1-269-968-3351 rev. 7-27-09 2009.
